Cart price rules can be applied on schedule as part of a campaign, and grouped with other content changes. You can create a new campaign based on scheduled changes to a price rule, or apply the changes to an existing campaign.
If a campaign that includes a price rule is initially created without an end date, the campaign cannot later be edited to include an end date. It is recommended that you either add an end date when you create the campaign, or create a duplicate version of the existing campaign and add the end date to the duplicate as needed.
If there are multiple price rules running in the same campaign, the Priority setting of the price rule determines which rule takes precedence. To learn more, see Content Staging.